Lock.



C. F. RAYMOND.

LOCK. APPLICATION FILED APR. u ms. RENEWED MAR. 13,,191'8.

Patented Apr. 29,1919.

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CHARLES .E. RAYMOND, OF NEW HAVEN, CONNECTICUT, ASSIGNOR T0 SARGENT 8:; COMPANY, OF NEW HAVEN, CCNNECTICUT, A CORFOBIATION OF CONNECTICUT.

LOCK.

Patented Apr. 2%), 191%.

Application filed April 11, 1916, Serial No. 90,477. Renewed March 13, 1918. Serial No. 222,260.

To all whom it may concern:

Be it known that I, CHARLES F. RAYMOND,

a citizen of the United States, residing in the clty and county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Locks, of which the following is a full, clear, and exact description.

This invention relates to looks and more particularly to locks for the rooms of hotels. The invention has special reference to locks of so-called one-bolt type, viz., those I. the retracted position, but which is only re tractable by the emergency key when the dead bolt is in the protracted position. It will be understood, however, from the following description that my improvements are applicable to locks of other types.

' One of the primary objects of the invention is to provide a lock in which a cylinder having a rollback or a cam arm is adapted to operate two different members by means of said rollback or cam arm when said cylinder is actuated by one key, whereas said rollback or cam' arm is operative on one of said members only when another key is inserted and turned in the cylinder.

Another object of the invention is to furnish a lock in which a cylinder having a single rollback which is always rotatable in a predetermined plane is adapted when actuated by one key to operate either of two members lying in said plane, said members constituting a part of a mortise lock mechanism, and one of said members beinginoperative by said rollback when another key is used. By this arrangement, one rollback or cam arm is adapted to do the work heretofore done by two rollbacks or cam arms, and as a consequence the construction and opera tion of the lock mechanism are very much simplified.

To these and other ends, the invention consists in'tlre novel features and combinetions of parts to be hereinafter described and claimed.

In the accompanying drawings,

Figure 1 is a front elevation of a mortise lock embodying my improvements, with the cap plate removed, the parts being in what may be'termed the normal position;

Fig. 2 is a view ofth'e upper part of the loclg'showing the latch bolt retracted by means of the change key;

Fig. 3 shows the upper portion of the lock with the rollback or cam arm turned by the emergency key, and in position to protract the dead bolt;

F i 4: is a section on line 4e-l of Fig. 1, showing the change key inserted into the cylinder; i

Fig. 5 is a similar view, showing the emer gency key inserted into the cylinder;

Fig; 6 is a reverse view of certain parts of the latch retracting mechanism showing them in the position which they occupy in Fig. 1; and

Fig. 7 is a detail top view of the dead bolt and its associated parts.

In the embodimentillustrated the customary case 10 is provided with the usual latch bolt 11, adapted to be retracted by a knob shoe or yoke 12, with which are asso ciated inside and outside hubs or rollbacks l3, 14, through which pass the usual knob spindle (not shown). Above the latch bolt 11 a dead bolt 15 is mounted in the case. This dead bolt has pivoted thereto a tumbler 16 with a loop 17 and a projection 18 on the loop extending between talons 19 on the lower part of the dead bolt and adapted to be engaged by the wing 20 of a thumb turn hub 21 operable from the inside of the room by the usual thumb turn (not shown). By this construction, the dead bolt may be protracted by rotation of the thumb turn hub in a clockwise direction with respect to Fig. 1. The projection 18 provided on the tumbler loop to cooperate with the thumb turn hub is at the lower part of this loop,

and at the upper part threof is a similar projection 22 extending between talons 23 the outside of the door is a cylinder lock 26 adapted .to,.be operated by a plurality of keys, including a change key or guest key 27 (Fig. 4), and an emergency key 28 (Fig. This cylinder lock is provided with a rollback or cam arm 29 which is rotatable in a single plane only, which plane is the plane 01 the talons 23 of the dead bolt. The operating projection or arm of the rollback 29 is adapted to enter between the talons 23 and engage the projection 22 of the tumbler 1.6 for the purpose of actuating the bolt 15, as hereinafter described. The rollback 29 is also adapted to retract the latch bolt when the dead bolt 15 is in the retracted position. For this purpose, the dead bolt carries a latch retracting lever 30. pivoted on said bolt at 31, and having a free end 32 adapted to rest on the upper edge of a main latch retracting lever 33, pivoted in the case at 34, as best shown in Fig. 6. This latch retracting lever 33 has a downwardly extending arm 35 cooperating with a cross-head 36 on the rear end of the latch bolt stem. In this manner the latch bolt may be retracted when the dead bolt is in the retracted position by turning the rollback 29 of the cylinder lock so that its operating projection moves into contact with the free end of lever 30, which thereby actuates the main latch retracting lever 33, as shown in Fig. 2. In operating the lever 30, the rollback 29 abuts against a projection 37 on the free end portion of said lever, which projection 37 is in the plane of the talons 23, as shown in Fig. 7.

Reverting to the cylinder lock 26, it will be seen that this cylinder lock comprises the usual case 38, with a face plate or escutcheon 39. A key plug 40 is rotatable in the case 38, and surrounding the key plug is a sleeve 41 which is cccentrically located relatively to the key plug, the axis of the sleeve being somewhat above that of the key plug. The rollback 29 previously mentioned is fixed on the rear end of the key plug 40 by means of screws 42. The arrangement is such that the key plug can be rotated individually by one key, for example, the change key 27; while another key, for example, the emer gency key 28, will rotate the key plug and sleeve together. To this end, the cylinder lock. is provided with suitable sectional pin tumblers 43 which are adapted to lock the sleeve 41 to the case and permit iree rotation of the key plug on its own axis when the change key is inserted, as shown in Fig. 4, whereas said pin tumblers lock the sleeve to the key plug when the emergency key is inserted, as shown in Fig. 5, and under these circumstances, permit the key plug and sleeve to rotate as a unit on the axis of the sleeve.

When the parts are in the position shown in Fig. 1, the latch bolt may be retracted by either of the keys 27, 28 by inserting such key and turning it in a counterclockwise direction. While the emergency key rotates the rollback on a higher axis than does the,

change key, owing to the eccentric relation of the key plug and sleeve, in any case the cam may be turned into engagement with the latch lever 30 for the purpose of operating the same and retracting the latch, as previously described. On the other hand, the dead bolt 15 can only be protracted and retracted by means ot the emergency key. hen the change key is inserted and turned in a clockwise direction with respect to Fig. 2, as indicated by the dotted lines, the rollback 29 takes up against the post 34, on which lever 33 is pivoted, and can not therefore engage the talons of the dead bolt for the purpose of actuating said bolt. Even if the post 34 did not block its path, the rollback would not engage between the talons .because, under these circumstances, its axis of rotation is too low. The emergency key, however, will readily protract and retract the dead bolt because it rotates the rollback on a higher axis, where it will properly engage the talons, as shown in Fig. The emergency key will protract the dead bolt and then retract it, and then on continued movement of the rollback, after the dead bolt has been retracted, said rollback will abut against and operate the lever 30 of the latch mechanism, and thereby retract the latch.

It is apparent that the change key can not operate on the latch bolt when the dead bolt has been protracted, for it is necessary to retract the dead bolt to bring the lever 30 into an operative position, and the dead bolt can be retracted by the emergency key only.

It will be understood that by my invention two members of a mortise lock mechanism, for example, the members 15 and 30, may both be actuated by a single rollback, such as 29, when the cylinder lock carrying said rollback is actuated by one key; whereas, only one of said members, for example, the member 30, may be actuated by said rollback when the cylinder is actuated by another key. Furthermore, it will be observed that the rollback is permanently rotatable in a single plane, and that both members of the mortise lock mechanism adaptedto be actuated by said rollback are located in said plane; but that when the rollback is rotated on one center by one of the keys, it will only operate one of said members, whereas it will operate both when rotated on another center by another key. The construction in question is a very simple one which obviates the use of a plurality of rollbacks on the cylin der, and it has been found to operate very efficiently in actual practice.

Various changes in the details of the mechanism may be adopted without departing from the scope of the invention as defined in the claims. lVhat I claim is: "L. 1. The combination with mortise lock mechanism having tvvo movable members, of a cylinder lock, a radially movable rollback on said cylinder lock having an operating project-ion, a key to operate either of said members by means of said operating projection, and a second key adapted to operate one of said members by means of said operating projection but inoperative on the other member; substantially as described.

2. The combination with mortise lock mechanism having two movable members lying in the same plane, of a cylinder look, a rollback mounted on said cylinder lock, a key to turn said rollback about a predetermined center in said plane and thereby engage said rollback With either of said members to operate the same, and a second key to turn said rollback about another center in said plane so that lilWlll engage only one of said members to operate the same; substanti ally as described.

3. The combination with mortise lock mechanism having tWo movable members, of

4 a cylinder lock having a rollback displaceable radially of the cylinder lock and adapted to engage and operateeither of said members; substantially as described.

l. The combination With mortise lock mechanism having movable members lying in the same plane, of a cylinder look, a rollback carried by said cylinder look, a key for rotating said rollback in the plane of said members but engaging only one of said members, and another key for rotating said rollback on another center, and thereby moving it into operating engagement With either of said members; substantially as described.

5. The combination with mortise lock mechanism having two movable members, of a cylinder lock having a key plug, a rollback carried by said key plug, a key for turning said key plug and rollback so as to engage the latter With either of said members, and another key for turning said key plug and rollback so that the latter Will operatively engage one of said members but Will not operatively engage the other, said rollback rotatable about different aXes by the respective keys but in the same plane; substantially as described.

6. The combination of a cylinder look, a rollback carried thereby, a lever member adapted to be operated by said rollback, a sliding member adapted to be operated by said rollback, a key for turning said rollback into operating engagement With either of said members, and another key for turning said rollback into operating engagement With one of said members but inoperative on the other member; substantially as described. I

7. The combination of a cylinder look, a rollback mounted thereon, a lever member adapted to be operated by said rollback, a sliding member adapted to be operated by said rollback, a key for turning said rollback into operating engagement with either of said members, and a second key adapted to turn said rollback into operating engagement With said lever member but inoperative on'said sliding member; substantially as described.

8. In a lock, the combination of dead bolt mechanism, latch bolt mechanism, a cylinder lock, a rollback for said cylinder lock, a key for turning said rollback about one axis into operating engagement With either of said mechanisms, and another key for turning said rollback about another axis into operating engagement With one of said mechanisms but inoperative on the other mechanism; substantially as described.

9. In a lock, a dead bolt, a latch bolt, latch bolt retracting mechanism, a cylinder lock, a rollback for said cylinder look, a key for turning said rollback about one axis into operating engagement with said dead bolt or said latch retracting mechanism, and another key adapted to turn said rollback about a second aXis into operating engagement with said latch retracting mechanism but inoperative on said dead bolt; substantially as described.

10. In a lock, the combination of a dead bolt, a tumbler therefor, a pivoted member lying in the same plane With said tumbler, a cylinder lock, a rollback for said cylinder lock located in the same plane as said tumbler and said pivoted member, a key for turning said rollback into operating engagement With said dead bolt tumbler or said pivoted member, and a second key for turning said rollback in the same plane about another axis into operating engagement With said pivoted member but inoperative on said dead bolt tumbler; substantially as described.

11. In a lock, the combination of a case, a latch bolt therein, a sliding member, a latch retracting lever, a pin tumbler lock mechanism having a single rollback, and tWo keys for operating said pin tumbler lock mechanism, one of said keys adapted to actuate said sliding member and said latch retracting lever by means of said rollback, and the other key being operative on said latch retracting lever by means of said rollback but inoperative on said sliding member; subsaid rollback, and the other key being operative to retract the latch bolt by means of said rollback but inoperative on said sliding member; substantially as described.

13. In a lock, the combination of two separate mechanisms to be actuated, each having an operating member and said operating members lying in the same plane, of

a cylinder lock having a rollback movable radially to engage and operate eitherof said members; substantially as described.

1 1. The combination with lock mechanism having two separate mechanisms, each including an operating member, of a cylinder lock having a rollback operable about dif ferent axes, a key for turning said rollback into engagement with either of said members, and a second key operative to turn said rollback about a different axis into engagement with one of said members but inoperative to engage it with the other; substantially as described.

15. The combination with a lock mecha nism having two movable members lying in the same plane, of a cylinder look, a rollback for said cylinder lock operable about different axes, a key for turning said roll back into operating engagement with either of said members depending upon the direction of rotation, and a second key operating said rollback about a different axis to engage said rollback with one of said members but inoperative to engage it with the other; substantially as described.

16. The combination with mortise lock mechanism having two movable members, of a cylinder look, a rollback for said cylinder lock operable about different axes, a key for turning said rollback about one axis into operative engagement with either of said members, depending upon the direction of rotation, and another key for turning said rollback about different axes to engage said rollback with one member but inoperative to engage it with the other; substantially as described.

17. The combination with mortise lock mechanism having two movable members, of a cylinder look, a rollback for said cylinder lock having a single operating projection, a key for turning said rollback projection about one axis into engagement with either of said members, depending upon the direction of rotation, and a second key operative to turn said rpllback projection about a different axis into engagement with one of said members but inoperative to turn it into engagement with the other; substantially as described.

18. The combination with mortise lock mechanism having two movable members, of a cylinder lock, a rollback for said cylinder lock having a single operating projection, a

Copies of this patent may be obtained for key for turning said rollback projection into engagement with either of said members, depending upon the direction of rotation, and a second key operative to turn said roll back projection into engagement with one of said members but inoperative to turn it into engagement with the other, said rollback being turned in difierent arcs by the respective keys; substantially as described.

19. In a lock, twoseparate mechanisms to be actuated, and a cylinder lock having a radially movable rollback with a single operating projection to operate both of said mechanisms.

20. In a lock, two separate mechanisms to be actuated each having an operating member, said operating members lying in the same plane, and a cylinder lock having a radially movable rollback with a single operating projection for operating said members.

21. In a lock, two separate mechanisms to be actuated each having an operating member, a cylinder lock having a radially movable rollback, a key to operate one member by means of said rollback, and another key to operate the other member by means of said rollback.

22. In a lock, two separate mechanisms to be actuated each having an operating member, a cylinder lock, a radially movable rollback for said cylinder lock having a single radial operating projection, a key for said cylinder lock to actuate one of said members by means of said operating projection, and a second key for said cylinder lock to operate the other member by means of said operating projection.

23. The combination with a lock mechanism having two separate mechanisms each including an operating member, of a cylinder lock having a rollback, a key for turning said rollback about one axis into engage ment with one of said members but inoperative to turn it into engagement with the other of said members, and a second key for turning said rollback about another axis into engagement with such other member.

2 1. The combination with lock mechanism having two separate mechanisms each ineluding an operating member, said operating members lying inthe same plane, of a cylinder lock having a rollback with a sin- 'gle operating projection disposed in the plane of said operating members, a key for turning said rollback projection into operat ing engagement with one of said members, and a second key for turning said rollback projection about a different axis into operating engagement with the other member.

In witness whereof, I have hereunto set my hand on the 8th day of April, 1916.

CHARLES F. RAYMOND.

five cents each, by addressing; the Commissioner of Patents, Washington, D, 0.. 

